Regulating a DC power supply with capacitors?

Why, when using capacitors to regulate a DC power supply, does is it better if you place the capacitors near an IC in the circuit rather than anywhere in the circuit? Surely it shouldn't make a difference just as long as the capacitor is in there?


Capacitors do not regulate. Decouple is the term to use.

If there were no such thing as wire resistance or inductance, then you could place the caps anywhere. But wires and circuit traces have inductance and resistance, so if the cap is



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Thermaltake Toughpower Grand 80-PLUS Gold PSU Debuts

The Efficiency Avantgarde in Modern Power Supplies

Thermaltake Technology, leading DIY computer components and power supply brand, today announced the latest addition to the popular "Toughpower" line of high-end PC power supply units, the Toughpower Grand Series. Its grandiose looks with a classy black finish make a clear statement through sheer appearance: this is quality pure. The proprietary 14cm dual-ball-bearing flower-shaped fan provides optimized ventilation for the inside components of the Tougherpower Grand unit. Being 80 PLUS Gold certified users don't just get a guaranteed eco-friendly PSU with more than 90% efficiency at 50% load and a 0.95 active power factor correction (PFC), but the electricity bill will noticeably drop as well. By virtue of their high-efficiency, the Toughpower Grand 650W (750W peak) and 750W (850W peak) models are ideally suited for high-end gaming and enthusiast PCs powering multi-core processors in combination with multi-G! PU setups.



power supply capacitors - News


Thermaltake Toughpower Grand 80-PLUS Gold PSU Debuts
Thermaltake Technology, leading DIY computer components and power supply brand, today announced the latest addition to the popular "Toughpower" line of

New Semtech EcoSpeed(TM) DC-DC Converters Provide Ultra-Fast Transient ...
They are ideal for office automation, networking and communications equipment; set-top boxes; portable products; power supply modules; and other embedded

Antec announces the High Current Pro power supply family
Antec announces the High Current Pro power supply family Beside the gold rating, Antec's units feature Active Power Factor Correction (Active PFC) with a power factor of over 0.9, Japanese-brand capacitors and

Anaheim Electronics Maker Acquired
Anaheim's RTI Electronics Inc., a maker of electronic parts that go into audio devices, big lighting jobs and power supply gear,

A-Data Enters the Power Supply Business
A-Data Enters the Power Supply Business “Entering into power supply unit market continues our strategic expansion and diversifies product portfolio that reveal significant opportunity to increase



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5V Voltage Regulator

This will be put in a case, and there are wires exposed to be attached to an LED that will be mounted in that case.



5V Voltage Regulator

This will be put in a case, and there are wires exposed to be attached to an LED that will be mounted in that case.



5V Voltage Regulator

This will be put in a case, and there are wires exposed to be attached to an LED that will be mounted in that case.



5V Voltage Regulator

This will be put in a case, and there are wires exposed to be attached to an LED that will be mounted in that case.